/* ===== 页面专属 CSS：.page-faq ===== */
.page-faq {
  --faq-max-width: 1200px;
  --faq-hero-bg: linear-gradient(135deg, #0A1F3F 0%, #004D9A 100%);
  --faq-card-bg: #FFFFFF;
  --faq-card-shadow: 0 4px 16px rgba(10, 31, 63, 0.10);
  --faq-question-bg: #F5F7FA;
  --faq-question-hover: #E8EDF5;
  --faq-icon-size: 40px;
  --faq-radius: 12px;
  --faq-index-width: 200px;
  --faq-gap: 24px;

  max-width: var(--faq-max-width);
  margin: 0 auto;
  padding: 0 20px 60px;
  font-family: var(--font-body, 'Helvetica Neue', Helvetica, Arial, sans-serif);
  color: var(--color-text-dark, #2C3E50);
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  padding: 16px 0 0;
  color: var(--color-white, #FFFFFF);
  opacity: 0.8;
  flex-wrap: wrap;
}
.page-faq .breadcrumb a {
  color: var(--color-accent, #FFD700);
  text-decoration: none;
  transition: opacity 0.2s;
}
.page-faq .breadcrumb a:hover {
  opacity: 0.8;
  text-decoration: underline;
}
.page-faq .breadcrumb .sep {
  color: var(--color-white, #FFFFFF);
  opacity: 0.5;
}
.page-faq .breadcrumb [aria-current="page"] {
  color: var(--color-white, #FFFFFF);
  font-weight: 600;
}

/* ===== Hero 标题区 ===== */
.page-faq .faq-hero {
  background: var(--faq-hero-bg);
  border-radius: var(--faq-radius);
  padding: 40px 32px 32px;
  margin: 20px 0 32px;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 215, 0, 0.08);
  pointer-events: none;
}
.page-faq .faq-hero-title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(28px, 6vw, 52px);
  color: var(--color-white, #FFFFFF);
  margin: 0 0 12px;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero-desc {
  font-size: clamp(15px, 2.2vw, 18px);
  color: rgba(255, 255, 255, 0.85);
  max-width: 680px;
  line-height: 1.6;
  margin: 0 0 20px;
  position: relative;
  z-index: 1;
}
.page-faq .faq-toggle-all-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.page-faq .faq-toggle-all {
  font-size: 14px;
  padding: 8px 20px;
  border-radius: 50px;
  background: transparent;
  border: 1.5px solid var(--color-accent, #FFD700);
  color: var(--color-accent, #FFD700);
  cursor: pointer;
  transition: all 0.25s ease;
  font-weight: 600;
}
.page-faq .faq-toggle-all:hover {
  background: var(--color-accent, #FFD700);
  color: var(--color-primary, #0A1F3F);
}

/* ===== 主布局：目录 + 问答 ===== */
.page-faq .faq-body {
  display: flex;
  gap: var(--faq-gap);
  align-items: flex-start;
}

/* ===== 左侧目录 ===== */
.page-faq .faq-index {
  flex: 0 0 var(--faq-index-width);
  position: sticky;
  top: 90px;
  z-index: 5;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.page-faq .faq-index-heading {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 16px;
  color: var(--color-primary, #0A1F3F);
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent, #FFD700);
}
.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-faq .faq-index-list li {
  margin: 0;
}
.page-faq .faq-index-list .tag-outline {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary, #0A1F3F);
  background: var(--color-bg-light, #F5F7FA);
  border: 1.5px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.3;
}
.page-faq .faq-index-list .tag-outline:hover {
  border-color: var(--color-accent, #FFD700);
  background: rgba(255, 215, 0, 0.10);
  color: var(--color-primary, #0A1F3F);
}
.page-faq .faq-index-list .tag-outline:focus-visible {
  outline: 2px solid var(--color-accent, #FFD700);
  outline-offset: 2px;
}

/* ===== 右侧问答列表 ===== */
.page-faq .faq-list {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ===== 单个问答项 ===== */
.page-faq .faq-item {
  background: var(--faq-card-bg);
  border-radius: var(--faq-radius);
  box-shadow: var(--faq-card-shadow);
  overflow: hidden;
  border: 1px solid rgba(10, 31, 63, 0.06);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.page-faq .faq-item[open] {
  border-color: var(--color-green, #00E676);
  box-shadow: 0 6px 24px rgba(0, 230, 118, 0.12);
}

/* 问题按钮 (summary) */
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  background: var(--faq-question-bg);
  cursor: pointer;
  list-style: none;
  transition: background 0.2s ease;
  user-select: none;
}
.page-faq .faq-question::-webkit-details-marker {
  display: none;
}
.page-faq .faq-question:hover {
  background: var(--faq-question-hover);
}
.page-faq .faq-item[open] .faq-question {
  background: rgba(0, 230, 118, 0.06);
  border-bottom: 1px solid rgba(0, 230, 118, 0.20);
}

/* 问号图标 */
.page-faq .faq-icon-wrap {
  flex: 0 0 auto;
  width: var(--faq-icon-size);
  height: var(--faq-icon-size);
  border-radius: 50%;
  background: var(--color-accent, #FFD700);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, background 0.3s ease;
}
.page-faq .faq-icon-symbol {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 22px;
  color: var(--color-primary, #0A1F3F);
  line-height: 1;
  font-weight: 700;
}
.page-faq .faq-item[open] .faq-icon-wrap {
  background: var(--color-green, #00E676);
  transform: scale(1.05);
}
.page-faq .faq-item[open] .faq-icon-symbol {
  color: #FFFFFF;
}

/* 问题文本 */
.page-faq .faq-question-text {
  flex: 1;
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 700;
  color: var(--color-primary, #0A1F3F);
  line-height: 1.4;
}

/* 展开/收起图标 */
.page-faq .faq-chevron {
  flex: 0 0 auto;
  color: var(--color-primary, #0A1F3F);
  opacity: 0.6;
  transition: transform 0.35s ease, opacity 0.25s ease;
}
.page-faq .faq-item[open] .faq-chevron {
  transform: rotate(180deg);
  opacity: 1;
  color: var(--color-green, #00E676);
}

/* 答案内容区 */
.page-faq .faq-answer {
  display: flex;
  gap: 20px;
  padding: 20px 22px 22px;
  flex-wrap: wrap;
  align-items: flex-start;
  background: #FFFFFF;
}
.page-faq .faq-answer-text {
  flex: 1;
  min-width: 240px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-dark, #2C3E50);
}
.page-faq .faq-answer-text p {
  margin: 0 0 12px;
}
.page-faq .faq-answer-text p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-answer-text ul {
  margin: 8px 0 12px;
  padding-left: 22px;
}
.page-faq .faq-answer-text li {
  margin-bottom: 6px;
}
.page-faq .faq-answer-text .highlight-number {
  color: var(--color-accent, #FFD700);
  background: rgba(255, 215, 0, 0.15);
  padding: 0 6px;
  border-radius: 4px;
  font-weight: 700;
}

/* 答案中的图片 */
.page-faq .faq-answer-image {
  flex: 0 0 auto;
  width: 300px;
  max-width: 100%;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(10, 31, 63, 0.08);
  background: var(--color-bg-light, #F5F7FA);
}
.page-faq .faq-answer-image .img-fluid {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}
.page-faq .link-accent {
  color: var(--color-accent, #FFD700);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.page-faq .link-accent:hover {
  border-bottom-color: var(--color-accent, #FFD700);
}
.page-faq .link-white {
  color: #FFFFFF;
  text-decoration: underline;
  font-weight: 600;
}
.page-faq .link-white:hover {
  opacity: 0.85;
}

/* 联系列表 */
.page-faq .contact-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}
.page-faq .contact-list li {
  margin-bottom: 8px;
  font-size: 15px;
}
.page-faq .contact-list a {
  color: var(--color-accent, #FFD700);
  font-weight: 600;
  text-decoration: none;
}
.page-faq .contact-list a:hover {
  text-decoration: underline;
}

/* ===== 底部联系引导 ===== */
.page-faq .faq-bottom-cta {
  margin-top: 48px;
  border-radius: var(--faq-radius);
  background: var(--gradient-hero, linear-gradient(135deg, #0A1F3F, #004D9A));
  padding: 40px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-bottom-cta::before {
  content: '?';
  position: absolute;
  right: -20px;
  bottom: -30px;
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 160px;
  color: rgba(255, 215, 0, 0.06);
  line-height: 1;
  pointer-events: none;
}
.page-faq .faq-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}
.page-faq .faq-cta-title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(24px, 4vw, 36px);
  color: #FFFFFF;
  margin: 0 0 12px;
  text-transform: uppercase;
}
.page-faq .faq-cta-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
  margin: 0 0 20px;
}
.page-faq .faq-cta-inner .btn-cta {
  display: inline-block;
  padding: 14px 36px;
  font-size: 16px;
  font-weight: 700;
  background: var(--color-accent, #FFD700);
  color: var(--color-primary, #0A1F3F);
  border-radius: 50px;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 4px 16px rgba(255, 215, 0, 0.30);
}
.page-faq .faq-cta-inner .btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
}

/* ===== 信任声明 ===== */
.page-faq .trust-statement {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-dark, #2C3E50);
  opacity: 0.65;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(10, 31, 63, 0.08);
}

/* ===== 小工具 ===== */
.page-faq .small-text {
  font-size: 13px;
  line-height: 1.5;
}
.page-faq .btn-outline {
  background: transparent;
  border: 1.5px solid currentColor;
  border-radius: 50px;
  padding: 8px 20px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}
.page-faq .btn-outline:hover {
  background: currentColor;
  color: var(--color-primary, #0A1F3F);
}

/* ======================================== */
/* 移动端优先 — 窄屏适配                     */
/* ======================================== */
@media (max-width: 820px) {
  .page-faq {
    padding: 0 16px 48px;
  }
  .page-faq .faq-hero {
    padding: 28px 20px 24px;
    margin: 12px 0 24px;
  }
  .page-faq .faq-hero-title {
    font-size: 26px;
  }
  .page-faq .faq-body {
    flex-direction: column;
  }
  /* 目录改为横向滚动标签 */
  .page-faq .faq-index {
    position: static;
    flex: none;
    width: 100%;
    max-height: none;
    overflow: visible;
    margin-bottom: 8px;
  }
  .page-faq .faq-index-heading {
    display: none;
  }
  .page-faq .faq-index-list {
    flex-direction: row;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
  }
  .page-faq .faq-index-list li {
    flex: 0 0 auto;
    scroll-snap-align: start;
  }
  .page-faq .faq-index-list .tag-outline {
    white-space: nowrap;
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 50px;
    background: var(--color-bg-light, #F5F7FA);
  }
  /* 问答答案图片在移动端占满宽度 */
  .page-faq .faq-answer {
    flex-direction: column;
    padding: 16px 18px 18px;
  }
  .page-faq .faq-answer-image {
    width: 100%;
    max-width: 100%;
  }
  .page-faq .faq-answer-image .img-fluid {
    width: 100%;
    height: auto;
  }
  .page-faq .faq-question {
    padding: 14px 16px;
    gap: 10px;
  }
  .page-faq .faq-icon-wrap {
    width: 32px;
    height: 32px;
  }
  .page-faq .faq-icon-symbol {
    font-size: 18px;
  }
  .page-faq .faq-bottom-cta {
    padding: 28px 20px;
    margin-top: 32px;
  }
  .page-faq .faq-cta-title {
    font-size: 24px;
  }
  .page-faq .faq-toggle-all-group {
    justify-content: flex-start;
  }
  .page-faq .faq-toggle-all {
    font-size: 13px;
    padding: 6px 16px;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero-title {
    font-size: 22px;
  }
  .page-faq .faq-hero-desc {
    font-size: 14px;
  }
  .page-faq .faq-question-text {
    font-size: 14px;
  }
  .page-faq .faq-answer-text {
    font-size: 14px;
  }
  .page-faq .faq-answer-text ul {
    padding-left: 18px;
  }
  .page-faq .faq-cta-desc {
    font-size: 14px;
  }
  .page-faq .faq-cta-inner .btn-cta {
    padding: 12px 28px;
    font-size: 15px;
  }
}

/* ======================================== */
/* 桌面端优化                                */
/* ======================================== */
@media (min-width: 1024px) {
  .page-faq {
    padding: 0 32px 80px;
  }
  .page-faq .faq-hero {
    padding: 48px 44px 36px;
    margin: 24px 0 40px;
  }
  .page-faq .faq-hero-title {
    font-size: 48px;
  }
  .page-faq .faq-body {
    gap: 36px;
  }
  .page-faq .faq-index {
    flex: 0 0 220px;
  }
  .page-faq .faq-question {
    padding: 20px 28px;
  }
  .page-faq .faq-answer {
    padding: 24px 28px 28px;
  }
  .page-faq .faq-bottom-cta {
    padding: 52px 44px;
  }
}

/* 打印优化：展开所有答案 */
@media print {
  .page-faq .faq-item:not([open]) {
    display: block;
  }
  .page-faq .faq-item .faq-answer {
    display: block !important;
    padding: 12px 0;
  }
  .page-faq .faq-chevron,
  .page-faq .faq-toggle-all-group,
  .page-faq .faq-index {
    display: none;
  }
  .page-faq .faq-hero {
    background: none;
    padding: 0;
    color: #000;
  }
  .page-faq .faq-hero-title,
  .page-faq .faq-hero-desc {
    color: #000;
  }
  .page-faq .breadcrumb {
    color: #333;
  }
  .page-faq .breadcrumb a {
    color: #0066CC;
  }
}